CWE-1321
AllowedImproperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Abstraction: Variant · Status: Incomplete
The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
866 vulnerabilities reference this CWE, most recent first.
GHSA-FF2P-HMQR-HXM4
Vulnerability from github – Published: 2026-08-05 17:41 – Updated: 2026-08-05 17:41Impact
Objects copied across the contextBridge boundary from untrusted content could carry an attacker-influenced prototype, enabling prototype-pollution-style attacks against preload code despite context isolation being enabled.
Apps are only affected if their preload code accepts object arguments from untrusted content and reads properties from them without own-property checks. Apps that only accept primitive arguments, or that validate object arguments, are not affected.
Workarounds
Validate objects received from untrusted content with own-property checks (Object.hasOwn), or copy them onto a null-prototype object before use.
Fixed Versions
42.0.0-beta.441.2.240.9.239.8.9
For more information
If you have any questions or comments about this advisory, email Electron at security@electronjs.org
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "39.8.9"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "40.0.0-alpha.1"
},
{
"fixed": "40.9.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "41.0.0-alpha.1"
},
{
"fixed": "41.2.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "42.0.0-alpha.1"
},
{
"fixed": "42.0.0-beta.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-70610"
],
"database_specific": {
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": true,
"github_reviewed_at": "2026-08-05T17:41:20Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "### Impact\nObjects copied across the `contextBridge` boundary from untrusted content could carry an attacker-influenced prototype, enabling prototype-pollution-style attacks against preload code despite context isolation being enabled.\n\nApps are only affected if their preload code accepts object arguments from untrusted content and reads properties from them without own-property checks. Apps that only accept primitive arguments, or that validate object arguments, are not affected.\n\n### Workarounds\nValidate objects received from untrusted content with own-property checks (`Object.hasOwn`), or copy them onto a null-prototype object before use.\n\n### Fixed Versions\n* `42.0.0-beta.4`\n* `41.2.2`\n* `40.9.2`\n* `39.8.9`\n\n### For more information\nIf you have any questions or comments about this advisory, email Electron at [security@electronjs.org](mailto:security@electronjs.org)",
"id": "GHSA-ff2p-hmqr-hxm4",
"modified": "2026-08-05T17:41:21Z",
"published": "2026-08-05T17:41:20Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/electron/electron/security/advisories/GHSA-ff2p-hmqr-hxm4"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/51083"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/51084"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/51085"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/51086"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/commit/17d5d26499cd279fab48f5f26527f8edc02a7713"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/commit/23a6efb714dec80e2cf45d3054d18d701162e4dd"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/commit/4ac50292d552fb510eb778392620c85308770a55"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/commit/5b699544cbbed51bedb7c60d75c8c42be5825737"
},
{
"type": "PACKAGE",
"url": "https://github.com/electron/electron"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v39.8.9"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v40.9.2"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v41.2.2"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v42.0.0-beta.4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "Electron: contextBridge object copy honors prototype setters"
}
GHSA-FF7X-QRG7-QGGM
Vulnerability from github – Published: 2020-07-29 20:56 – Updated: 2022-08-11 14:58Prototype pollution vulnerability in dot-prop npm package versions before 4.2.1 and versions 5.x before 5.1.1 allows an attacker to add arbitrary properties to JavaScript language constructs such as objects.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "dot-prop"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "dot-prop"
},
"ranges": [
{
"events": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.1.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-8116"
],
"database_specific": {
"cwe_ids": [
"CWE-1321",
"CWE-425",
"CWE-471"
],
"github_reviewed": true,
"github_reviewed_at": "2020-07-29T20:51:37Z",
"nvd_published_at": "2020-02-04T20:15:00Z",
"severity": "HIGH"
},
"details": "Prototype pollution vulnerability in dot-prop npm package versions before 4.2.1 and versions 5.x before 5.1.1 allows an attacker to add arbitrary properties to JavaScript language constructs such as objects.",
"id": "GHSA-ff7x-qrg7-qggm",
"modified": "2022-08-11T14:58:19Z",
"published": "2020-07-29T20:56:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8116"
},
{
"type": "WEB",
"url": "https://github.com/sindresorhus/dot-prop/issues/63"
},
{
"type": "WEB",
"url": "https://github.com/sindresorhus/dot-prop/commit/3039c8c07f6fdaa8b595ec869ae0895686a7a0f2"
},
{
"type": "WEB",
"url": "https://github.com/sindresorhus/dot-prop/commit/c914124f418f55edea27928e89c94d931babe587"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/719856"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-ff7x-qrg7-qggm"
},
{
"type": "PACKAGE",
"url": "https://github.com/sindresorhus/dot-prop"
},
{
"type": "WEB",
"url": "https://github.com/sindresorhus/dot-prop/tree/v4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
}
],
"summary": "dot-prop Prototype Pollution vulnerability"
}
GHSA-FF9J-PWXG-Q5P2
Vulnerability from github – Published: 2022-11-04 12:00 – Updated: 2022-11-08 14:49deep-parse-json version 1.0.2 allows an external attacker to edit or add new properties to an object. This is possible because the application does not correctly validate the incoming JSON keys, thus allowing the __proto__ property to be edited.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "deep-parse-json"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.0.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-42743"
],
"database_specific": {
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": true,
"github_reviewed_at": "2022-11-08T14:49:05Z",
"nvd_published_at": "2022-11-03T20:15:00Z",
"severity": "MODERATE"
},
"details": "deep-parse-json version 1.0.2 allows an external attacker to edit or add new properties to an object. This is possible because the application does not correctly validate the incoming JSON keys, thus allowing the `__proto__` property to be edited.",
"id": "GHSA-ff9j-pwxg-q5p2",
"modified": "2022-11-08T14:49:05Z",
"published": "2022-11-04T12:00:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42743"
},
{
"type": "WEB",
"url": "https://github.com/sibu-github/deep-parse-json/issues/6"
},
{
"type": "WEB",
"url": "https://fluidattacks.com/advisories/buuren"
},
{
"type": "PACKAGE",
"url": "https://github.com/sibu-github/deep-parse-json"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
],
"summary": "deep-parse-json vulnerable to Prototype Pollution"
}
GHSA-FFRW-9MX8-89P8
Vulnerability from github – Published: 2025-09-24 21:30 – Updated: 2025-11-20 17:27Withdrawn Advisory
This advisory has been withdrawn because the issue uses an internal undocumented utility function. This link is maintained to preserve external references.
Original Description
fast-redact is a package that provides do very fast object redaction. A Prototype Pollution vulnerability in the nestedRestore function of fast-redact version 3.5.0 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "fast-redact"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.5.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-57319"
],
"database_specific": {
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": true,
"github_reviewed_at": "2025-09-29T13:10:15Z",
"nvd_published_at": "2025-09-24T21:15:32Z",
"severity": "LOW"
},
"details": "## Withdrawn Advisory\nThis advisory has been withdrawn because the issue uses an internal undocumented utility function. This link is maintained to preserve external references.\n\n## Original Description\n\nfast-redact is a package that provides do very fast object redaction. A Prototype Pollution vulnerability in the nestedRestore function of fast-redact version 3.5.0 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.",
"id": "GHSA-ffrw-9mx8-89p8",
"modified": "2025-11-20T17:27:56Z",
"published": "2025-09-24T21:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-57319"
},
{
"type": "WEB",
"url": "https://github.com/davidmarkclements/fast-redact/issues/75"
},
{
"type": "WEB",
"url": "https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/fast-redact%403.5.0/index.js"
},
{
"type": "WEB",
"url": "https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57319"
},
{
"type": "PACKAGE",
"url": "https://github.com/davidmarkclements/fast-redact"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
"type": "CVSS_V4"
}
],
"summary": "Withdrawn Advisory: fast-redact vulnerable to prototype pollution",
"withdrawn": "2025-11-20T17:27:56Z"
}
GHSA-FG4M-W35Q-VFG2
Vulnerability from github – Published: 2025-02-06 06:31 – Updated: 2025-03-19 15:40A prototype pollution in the lib.deepMerge function of @zag-js/core v0.50.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "@zag-js/core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.82.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-57079"
],
"database_specific": {
"cwe_ids": [
"CWE-1321",
"CWE-400"
],
"github_reviewed": true,
"github_reviewed_at": "2025-02-06T23:32:24Z",
"nvd_published_at": "2025-02-05T22:15:32Z",
"severity": "HIGH"
},
"details": "A prototype pollution in the lib.deepMerge function of @zag-js/core v0.50.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.",
"id": "GHSA-fg4m-w35q-vfg2",
"modified": "2025-03-19T15:40:29Z",
"published": "2025-02-06T06:31:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57079"
},
{
"type": "WEB",
"url": "https://github.com/chakra-ui/zag/pull/2255"
},
{
"type": "WEB",
"url": "https://github.com/chakra-ui/zag/commit/f53edc548f737aadfdd486a0043bdd5f5c068bbf"
},
{
"type": "WEB",
"url": "https://gist.github.com/tariqhawis/4778fc57084766b7b7fb6d25d20b7b9b"
},
{
"type": "PACKAGE",
"url": "https://github.com/chakra-ui/zag"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "@zag-js/core prototype pollution"
}
GHSA-FG52-5JJJ-28H7
Vulnerability from github – Published: 2024-06-17 15:30 – Updated: 2024-06-17 21:29A Prototype Pollution issue in cdr0 sg 1.0.10 allows an attacker to execute arbitrary code.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "@cdr0/sg"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.0.10"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-36580"
],
"database_specific": {
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": true,
"github_reviewed_at": "2024-06-17T21:29:55Z",
"nvd_published_at": "2024-06-17T14:15:10Z",
"severity": "MODERATE"
},
"details": "A Prototype Pollution issue in cdr0 sg 1.0.10 allows an attacker to execute arbitrary code.",
"id": "GHSA-fg52-5jjj-28h7",
"modified": "2024-06-17T21:29:55Z",
"published": "2024-06-17T15:30:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36580"
},
{
"type": "WEB",
"url": "https://github.com/briancsparks/cdr0-sg/issues/11"
},
{
"type": "WEB",
"url": "https://gist.github.com/mestrtee/a75d75eca4622ad08f7cfa903a6cc9c3"
},
{
"type": "PACKAGE",
"url": "https://github.com/briancsparks/cdr0-sg"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "@cdr0/sg Prototype Pollution"
}
GHSA-FGQ5-VX4R-RG7C
Vulnerability from github – Published: 2024-07-30 21:31 – Updated: 2024-08-01 15:32Prototype Pollution in alykoshin mini-deep-assign v0.0.8 allows an attacker to execute arbitrary code or cause a Denial of Service (DoS) and cause other impacts via the _assign() method at (/lib/index.js:91)
{
"affected": [],
"aliases": [
"CVE-2024-38983"
],
"database_specific": {
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-30T21:15:09Z",
"severity": "CRITICAL"
},
"details": "Prototype Pollution in alykoshin mini-deep-assign v0.0.8 allows an attacker to execute arbitrary code or cause a Denial of Service (DoS) and cause other impacts via the _assign() method at (/lib/index.js:91)",
"id": "GHSA-fgq5-vx4r-rg7c",
"modified": "2024-08-01T15:32:15Z",
"published": "2024-07-30T21:31:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38983"
},
{
"type": "WEB",
"url": "https://gist.github.com/mestrtee/f82d0c3a8fe3a125f06425caef5d22ed"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FH4H-F94G-C2QP
Vulnerability from github – Published: 2026-07-28 15:32 – Updated: 2026-07-28 15:32Pivotick used plain JavaScript objects as lookup tables indexed by caller-controlled graph node identifiers in its tree-layout and cycle-detection components.
Node identifiers matching properties inherited from Object.prototype, such as constructor, toString, or proto, were not handled as ordinary identifiers. These values could be interpreted as existing inherited properties, resolve to values of an unexpected type, or—in the case of proto assignments—modify the prototype of an internal lookup object.
An attacker who can supply graph data containing crafted node identifiers could consequently cause nodes or edges to be silently omitted, produce incorrect hierarchy levels, bypass or corrupt cycle-detection results, or trigger an exception that interrupts graph processing and rendering. This affects the integrity of graph visualisations and analytics and may cause a client-side denial-of-service condition.
The affected code also failed to safely handle edges whose source node was absent from the supplied node set. Furthermore, calculating the maximum tree depth by spreading all level values into Math.max() could exceed the JavaScript function-argument limit when processing a sufficiently large graph, resulting in an exception and denial of service.
The patch replaces identifier-keyed plain objects with Map instances, ignores invalid edges during tree construction, and calculates the maximum depth iteratively.
{
"affected": [],
"aliases": [
"CVE-2026-66922"
],
"database_specific": {
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-28T14:16:40Z",
"severity": "MODERATE"
},
"details": "Pivotick used plain JavaScript objects as lookup tables indexed by caller-controlled graph node identifiers in its tree-layout and cycle-detection components.\n\nNode identifiers matching properties inherited from Object.prototype, such as constructor, toString, or __proto__, were not handled as ordinary identifiers. These values could be interpreted as existing inherited properties, resolve to values of an unexpected type, or\u2014in the case of __proto__ assignments\u2014modify the prototype of an internal lookup object.\n\nAn attacker who can supply graph data containing crafted node identifiers could consequently cause nodes or edges to be silently omitted, produce incorrect hierarchy levels, bypass or corrupt cycle-detection results, or trigger an exception that interrupts graph processing and rendering. This affects the integrity of graph visualisations and analytics and may cause a client-side denial-of-service condition.\n\nThe affected code also failed to safely handle edges whose source node was absent from the supplied node set. Furthermore, calculating the maximum tree depth by spreading all level values into Math.max() could exceed the JavaScript function-argument limit when processing a sufficiently large graph, resulting in an exception and denial of service.\n\nThe patch replaces identifier-keyed plain objects with Map instances, ignores invalid edges during tree construction, and calculates the maximum depth iteratively.",
"id": "GHSA-fh4h-f94g-c2qp",
"modified": "2026-07-28T15:32:18Z",
"published": "2026-07-28T15:32:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66922"
},
{
"type": "WEB",
"url": "https://github.com/Pivotick/Pivotick/commit/4e12922627029af77476c6f1ab8a14e98d5ef451"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-FHV8-FX5F-7FXF
Vulnerability from github – Published: 2021-09-20 19:53 – Updated: 2024-12-06 18:20Impact
Using merge and clone helper methods in the src/core/util.ts module will have prototype pollution. It will affect the popular data visualization library Apache ECharts, which is using and exported these two methods directly.
Patches
It has been patched in https://github.com/ecomfe/zrender/pull/826.
Users should update zrender to 5.2.1. and update echarts to 5.2.1 if project is using echarts.
References
NA
For more information
NA
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "zrender"
},
"ranges": [
{
"events": [
{
"introduced": "5.0.0"
},
{
"fixed": "5.2.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 4.3.2"
},
"package": {
"ecosystem": "npm",
"name": "zrender"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.3.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-39227"
],
"database_specific": {
"cwe_ids": [
"CWE-1321",
"CWE-915"
],
"github_reviewed": true,
"github_reviewed_at": "2021-09-17T17:51:46Z",
"nvd_published_at": "2021-09-17T14:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\nUsing `merge` and `clone` helper methods in the `src/core/util.ts` module will have prototype pollution. It will affect the popular data visualization library Apache ECharts, which is using and exported these two methods directly.\n\n### Patches\n \nIt has been patched in https://github.com/ecomfe/zrender/pull/826. \nUsers should update zrender to `5.2.1`. and update echarts to `5.2.1` if project is using echarts.\n\n### References\nNA\n\n### For more information\nNA\n",
"id": "GHSA-fhv8-fx5f-7fxf",
"modified": "2024-12-06T18:20:49Z",
"published": "2021-09-20T19:53:15Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/ecomfe/zrender/security/advisories/GHSA-fhv8-fx5f-7fxf"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39227"
},
{
"type": "WEB",
"url": "https://github.com/ecomfe/zrender/pull/826"
},
{
"type": "PACKAGE",
"url": "https://github.com/ecomfe/zrender"
},
{
"type": "WEB",
"url": "https://github.com/ecomfe/zrender/releases/tag/5.2.1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Prototype Pollution in the merge and clone helper methods"
}
GHSA-FM93-FHH2-CG2C
Vulnerability from github – Published: 2022-01-27 14:21 – Updated: 2025-07-18 19:44Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-2m53-83f3-562j. This link is maintained to preserve external references.
Original Description
The package min-dash before 3.8.1 are vulnerable to Prototype Pollution via the set method due to missing enforcement of key types.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "min-dash"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.8.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-1321"
],
"github_reviewed": true,
"github_reviewed_at": "2022-01-24T22:51:52Z",
"nvd_published_at": "2022-01-21T20:15:00Z",
"severity": "HIGH"
},
"details": "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-2m53-83f3-562j. This link is maintained to preserve external references.\n\n## Original Description\nThe package min-dash before 3.8.1 are vulnerable to Prototype Pollution via the set method due to missing enforcement of key types.",
"id": "GHSA-fm93-fhh2-cg2c",
"modified": "2025-07-18T19:44:32Z",
"published": "2022-01-27T14:21:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23460"
},
{
"type": "WEB",
"url": "https://github.com/bpmn-io/min-dash/pull/21"
},
{
"type": "WEB",
"url": "https://github.com/bpmn-io/min-dash/pull/21/commits/5ab05cbc4fd8d5eafb7db540c491ed0906b9d320"
},
{
"type": "PACKAGE",
"url": "https://github.com/bpmn-io/min-dash"
},
{
"type": "WEB",
"url": "https://github.com/bpmn-io/min-dash/blob/c4d579c0eb2ed0739592111c3906b198921d3f52/lib/object.js%23L32"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2342127"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-JS-MINDASH-2340605"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "Duplicate Advisory: Prototype Pollution in min-dash",
"withdrawn": "2025-07-18T19:44:32Z"
}
Mitigation
By freezing the object prototype first (for example, Object.freeze(Object.prototype)), modification of the prototype becomes impossible.
Mitigation
By blocking modifications of attributes that resolve to object prototype, such as proto or prototype, this weakness can be mitigated.
Mitigation
Strategy: Input Validation
When handling untrusted objects, validating using a schema can be used.
Mitigation
By using an object without prototypes (via Object.create(null) ), adding object prototype attributes by accessing the prototype via the special attributes becomes impossible, mitigating this weakness.
Mitigation
Map can be used instead of objects in most cases. If Map methods are used instead of object attributes, it is not possible to access the object prototype or modify it.
CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs
In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.
CAPEC-180: Exploiting Incorrectly Configured Access Control Security Levels
An attacker exploits a weakness in the configuration of access controls and is able to bypass the intended protection that these measures guard against and thereby obtain unauthorized access to the system or network. Sensitive functionality should always be protected with access controls. However configuring all but the most trivial access control systems can be very complicated and there are many opportunities for mistakes. If an attacker can learn of incorrectly configured access security settings, they may be able to exploit this in an attack.
CAPEC-77: Manipulating User-Controlled Variables
This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An adversary can override variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the adversary can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.